Compare commits
No commits in common. "a5f7a8c2ae26508101e5005600af54da7edf0d31" and "09136b0ca62ca538aa4f7e3c53d864e128c99303" have entirely different histories.
a5f7a8c2ae
...
09136b0ca6
@ -1,9 +1,7 @@
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package serverevents
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package serverevents
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import (
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import (
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gocontext "context"
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di "git.apihub24.de/admin/generic-di"
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di "git.apihub24.de/admin/generic-di"
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"github.com/coder/websocket"
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"sync"
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"sync"
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"time"
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"time"
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)
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)
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@ -15,8 +13,6 @@ func init() {
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type IContext interface {
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type IContext interface {
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SetId(id string)
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SetId(id string)
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GetId() string
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GetId() string
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SetConnection(conn *websocket.Conn)
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GetConnection() *websocket.Conn
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Set(key string, data any)
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Set(key string, data any)
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Get(key string) (any, bool)
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Get(key string) (any, bool)
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RemoveMetaData(key string)
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RemoveMetaData(key string)
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@ -29,10 +25,8 @@ type context struct {
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id string
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id string
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metadata map[string]any
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metadata map[string]any
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timer *time.Timer
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timer *time.Timer
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hub IEventHub
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emitter IEventEmitter
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mutex sync.RWMutex
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mutex sync.RWMutex
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c *websocket.Conn
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ctx gocontext.Context
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}
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}
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func newContext() IContext {
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func newContext() IContext {
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@ -40,9 +34,8 @@ func newContext() IContext {
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id: "",
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id: "",
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metadata: make(map[string]any),
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metadata: make(map[string]any),
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timer: nil,
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timer: nil,
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hub: di.Inject[IEventHub](),
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emitter: di.Inject[IEventEmitter](),
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mutex: sync.RWMutex{},
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mutex: sync.RWMutex{},
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c: nil,
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}
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}
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}
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}
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@ -117,13 +110,5 @@ func (context *context) Dispatch(eventName string, data any, filter func(c ICont
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IsBackendOnly: filter == nil,
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IsBackendOnly: filter == nil,
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Filter: filter,
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Filter: filter,
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}
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}
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context.hub.Dispatch(ev, context)
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context.emitter.Emit(ev)
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}
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func (context *context) GetConnection() *websocket.Conn {
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return context.c
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}
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func (context *context) SetConnection(conn *websocket.Conn) {
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context.c = conn
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}
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}
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89
v2/emitter.go
Normal file
89
v2/emitter.go
Normal file
@ -0,0 +1,89 @@
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package serverevents
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import (
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di "git.apihub24.de/admin/generic-di"
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"github.com/google/uuid"
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"slices"
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"sync"
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)
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func init() {
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di.Injectable(newEventEmitter)
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}
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type IEventEmitter interface {
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On(eventType string, do func(Event)) Subscription
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OnAll(do func(Event)) Subscription
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Emit(event Event)
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Unsubscribe(Subscription)
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}
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type eventEmitter struct {
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subscribers map[string][]Subscription
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onAllSubscribers []Subscription
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mu sync.RWMutex
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}
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func newEventEmitter() IEventEmitter {
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return &eventEmitter{}
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}
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func (emitter *eventEmitter) On(eventType string, do func(Event)) Subscription {
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emitter.mu.Lock()
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defer emitter.mu.Unlock()
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if emitter.subscribers[eventType] == nil {
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emitter.subscribers[eventType] = make([]Subscription, 0)
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}
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sub := Subscription{
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id: uuid.NewString(),
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eventType: eventType,
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todo: do,
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emitter: emitter,
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}
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emitter.subscribers[eventType] = append(emitter.subscribers[eventType], sub)
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return sub
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}
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func (emitter *eventEmitter) OnAll(do func(Event)) Subscription {
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emitter.mu.Lock()
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defer emitter.mu.Unlock()
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sub := Subscription{
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id: uuid.NewString(),
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todo: do,
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emitter: emitter,
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}
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emitter.onAllSubscribers = append(emitter.onAllSubscribers, sub)
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return sub
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}
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func (emitter *eventEmitter) Emit(event Event) {
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emitter.executeSubscribers(emitter.onAllSubscribers, event)
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eventSubscribers := emitter.subscribers[event.Type]
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if eventSubscribers != nil {
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emitter.executeSubscribers(eventSubscribers, event)
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}
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}
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func (emitter *eventEmitter) Unsubscribe(subscription Subscription) {
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if len(subscription.eventType) < 1 {
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emitter.onAllSubscribers = slices.DeleteFunc(emitter.onAllSubscribers, func(existSub Subscription) bool {
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return existSub.id == subscription.id
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|
})
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|
return
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|
}
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eventSubscribers := emitter.subscribers[subscription.eventType]
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if eventSubscribers == nil || len(eventSubscribers) < 1 {
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return
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|
}
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emitter.subscribers[subscription.eventType] = slices.DeleteFunc(emitter.subscribers[subscription.eventType], func(existSub Subscription) bool {
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return existSub.id == subscription.id
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})
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}
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func (emitter *eventEmitter) executeSubscribers(toDos []Subscription, event Event) {
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for _, sub := range toDos {
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sub.todo(event)
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}
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}
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10
v2/go.mod
10
v2/go.mod
@ -1,13 +1,9 @@
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module git.apihub24.de/admin/server_events/v2
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module git.apihub24.de/admin/server_events/v2
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||||||
|
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||||||
go 1.23.0
|
go 1.22.0
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||||||
|
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||||||
toolchain go1.24.4
|
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||||||
|
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||||||
require (
|
require (
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||||||
git.apihub24.de/admin/generic-di v1.4.0
|
git.apihub24.de/admin/generic-di v1.4.0
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||||||
)
|
github.com/google/uuid v1.6.0
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||||||
|
github.com/gorilla/websocket v1.5.3
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||||||
require (
|
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github.com/coder/websocket v1.8.13 // indirect
|
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||||||
)
|
)
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||||||
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|||||||
102
v2/go.sum
102
v2/go.sum
@ -1,108 +1,6 @@
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|||||||
git.apihub24.de/admin/generic-di v1.4.0 h1:0mQnpAcavMLBcnF5UO+tUI7abZ6zQPleqPsjEk3WIaU=
|
git.apihub24.de/admin/generic-di v1.4.0 h1:0mQnpAcavMLBcnF5UO+tUI7abZ6zQPleqPsjEk3WIaU=
|
||||||
git.apihub24.de/admin/generic-di v1.4.0/go.mod h1:VcHV8MOb1qhwabHdO09CpjEg2VaDesehul86g1iyOxY=
|
git.apihub24.de/admin/generic-di v1.4.0/go.mod h1:VcHV8MOb1qhwabHdO09CpjEg2VaDesehul86g1iyOxY=
|
||||||
github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
|
|
||||||
github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
|
|
||||||
github.com/coder/websocket v1.8.13 h1:f3QZdXy7uGVz+4uCJy2nTZyM0yTBj8yANEHhqlXZ9FE=
|
|
||||||
github.com/coder/websocket v1.8.13/go.mod h1:LNVeNrXQZfe5qhS9ALED3uA+l5pPqvwXg3CKoDBB2gs=
|
|
||||||
github.com/dave/jennifer v1.7.0 h1:uRbSBH9UTS64yXbh4FrMHfgfY762RD+C7bUPKODpSJE=
|
|
||||||
github.com/dave/jennifer v1.7.0/go.mod h1:nXbxhEmQfOZhWml3D1cDK5M1FLnMSozpbFN/m3RmGZc=
|
|
||||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
|
||||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
|
||||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
|
||||||
github.com/francoispqt/gojay v1.2.13 h1:d2m3sFjloqoIUQU3TsHBgj6qg/BVGlTBeHDUmyJnXKk=
|
|
||||||
github.com/francoispqt/gojay v1.2.13/go.mod h1:ehT5mTG4ua4581f1++1WLG0vPdaA9HaiDsoyrBGkyDY=
|
|
||||||
github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
|
|
||||||
github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
|
|
||||||
github.com/go-kit/log v0.2.1 h1:MRVx0/zhvdseW+Gza6N9rVzU/IVzaeE1SFI4raAhmBU=
|
|
||||||
github.com/go-kit/log v0.2.1/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
|
|
||||||
github.com/go-logfmt/logfmt v0.6.0 h1:wGYYu3uicYdqXVgoYbvnkrPVXkuLM1p1ifugDMEdRi4=
|
|
||||||
github.com/go-logfmt/logfmt v0.6.0/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
|
|
||||||
github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
|
|
||||||
github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
|
|
||||||
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
|
|
||||||
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
|
|
||||||
github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
|
|
||||||
github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
|
|
||||||
github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
|
|
||||||
github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
|
|
||||||
github.com/google/pprof v0.0.0-20240402174815-29b9bb013b0f h1:f00RU+zOX+B3rLAmMMkzHUF2h1z4DeYR9tTCvEq2REY=
|
|
||||||
github.com/google/pprof v0.0.0-20240402174815-29b9bb013b0f/go.mod h1:kf6iHlnVGwgKolg33glAes7Yg/8iWP8ukqeldJSO7jw=
|
|
||||||
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
|
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
|
||||||
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||||
github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
|
github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
|
||||||
github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
|
github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
|
||||||
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
|
||||||
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
|
||||||
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
|
||||||
github.com/nxadm/tail v1.4.11 h1:8feyoE3OzPrcshW5/MJ4sGESc5cqmGkGCWlco4l0bqY=
|
|
||||||
github.com/nxadm/tail v1.4.11/go.mod h1:OTaG3NK980DZzxbRq6lEuzgU+mug70nY11sMd4JXXHc=
|
|
||||||
github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
|
|
||||||
github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
|
|
||||||
github.com/onsi/ginkgo/v2 v2.13.0 h1:0jY9lJquiL8fcf3M4LAXN5aMlS/b2BV86HFFPCPMgE4=
|
|
||||||
github.com/onsi/ginkgo/v2 v2.13.0/go.mod h1:TE309ZR8s5FsKKpuB1YAQYBzCaAfUgatB/xlT/ETL/o=
|
|
||||||
github.com/onsi/gomega v1.27.10 h1:naR28SdDFlqrG6kScpT8VWpu1xWY5nJRCF3XaYyBjhI=
|
|
||||||
github.com/onsi/gomega v1.27.10/go.mod h1:RsS8tutOdbdgzbPtzzATp12yT7kM5I5aElG3evPbQ0M=
|
|
||||||
github.com/philippseith/signalr v0.7.0 h1:bt8uusIKr3+hpQ5bRxEsHAM3VbEU15lve7e74Hf5a4E=
|
|
||||||
github.com/philippseith/signalr v0.7.0/go.mod h1:deqWw2+rPPcdUQVvzXoB6A6FQB3v1OCnroy8CiUJNkg=
|
|
||||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
|
||||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
|
||||||
github.com/quic-go/qpack v0.5.1 h1:giqksBPnT/HDtZ6VhtFKgoLOWmlyo9Ei6u9PqzIMbhI=
|
|
||||||
github.com/quic-go/qpack v0.5.1/go.mod h1:+PC4XFrEskIVkcLzpEkbLqq1uCoxPhQuvK5rH1ZgaEg=
|
|
||||||
github.com/quic-go/quic-go v0.48.2 h1:wsKXZPeGWpMpCGSWqOcqpW2wZYic/8T3aqiOID0/KWE=
|
|
||||||
github.com/quic-go/quic-go v0.48.2/go.mod h1:yBgs3rWBOADpga7F+jJsb6Ybg1LSYiQvwWlLX+/6HMs=
|
|
||||||
github.com/quic-go/webtransport-go v0.8.1-0.20241018022711-4ac2c9250e66 h1:4WFk6u3sOT6pLa1kQ50ZVdm8BQFgJNA117cepZxtLIg=
|
|
||||||
github.com/quic-go/webtransport-go v0.8.1-0.20241018022711-4ac2c9250e66/go.mod h1:Vp72IJajgeOL6ddqrAhmp7IM9zbTcgkQxD/YdxrVwMw=
|
|
||||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
|
||||||
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
|
|
||||||
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
|
|
||||||
github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
|
|
||||||
github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
|
|
||||||
github.com/teivah/onecontext v1.3.0 h1:tbikMhAlo6VhAuEGCvhc8HlTnpX4xTNPTOseWuhO1J0=
|
|
||||||
github.com/teivah/onecontext v1.3.0/go.mod h1:hoW1nmdPVK/0jrvGtcx8sCKYs2PiS4z0zzfdeuEVyb0=
|
|
||||||
github.com/vmihailenco/msgpack/v5 v5.4.1 h1:cQriyiUvjTwOHg8QZaPihLWeRAAVoCpE00IUPn0Bjt8=
|
|
||||||
github.com/vmihailenco/msgpack/v5 v5.4.1/go.mod h1:GaZTsDaehaPpQVyxrf5mtQlH+pc21PIudVV/E3rRQok=
|
|
||||||
github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g=
|
|
||||||
github.com/vmihailenco/tagparser/v2 v2.0.0/go.mod h1:Wri+At7QHww0WTrCBeu4J6bNtoV6mEfg5OIWRZA9qds=
|
|
||||||
go.uber.org/goleak v1.1.10 h1:z+mqJhf6ss6BSfSM671tgKyZBFPTTJM+HLxnhPC3wu0=
|
|
||||||
go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
|
|
||||||
go.uber.org/mock v0.4.0 h1:VcM4ZOtdbR4f6VXfiOpwpVJDL6lCReaZ6mw31wqh7KU=
|
|
||||||
go.uber.org/mock v0.4.0/go.mod h1:a6FSlNadKUHUa9IP5Vyt1zh4fC7uAwxMutEAscFbkZc=
|
|
||||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
|
||||||
golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
|
|
||||||
golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
|
|
||||||
golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 h1:vr/HnozRka3pE4EsMEg1lgkXJkTFJCVUX+S/ZT6wYzM=
|
|
||||||
golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc=
|
|
||||||
golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
|
|
||||||
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
|
|
||||||
golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
|
|
||||||
golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
|
|
||||||
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
|
||||||
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
|
||||||
golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
|
|
||||||
golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
|
|
||||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
|
||||||
golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
|
|
||||||
golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
|
|
||||||
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
|
||||||
golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
|
|
||||||
golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
|
|
||||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
|
||||||
golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
|
|
||||||
golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
|
|
||||||
golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
|
|
||||||
golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
|
|
||||||
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
|
|
||||||
golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
|
||||||
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d h1:vU5i/LfpvrRCpgM/VPfJLg5KjxD3E+hfT1SH+d9zLwg=
|
|
||||||
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
|
|
||||||
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
|
||||||
google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
|
|
||||||
google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
|
|
||||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
|
||||||
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
|
||||||
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
|
|
||||||
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
|
|
||||||
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
|
||||||
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
|
||||||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
|
|
||||||
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
|
||||||
|
|||||||
99
v2/hub.go
99
v2/hub.go
@ -1,99 +0,0 @@
|
|||||||
package serverevents
|
|
||||||
|
|
||||||
import (
|
|
||||||
gocontext "context"
|
|
||||||
"fmt"
|
|
||||||
di "git.apihub24.de/admin/generic-di"
|
|
||||||
"github.com/coder/websocket"
|
|
||||||
"github.com/coder/websocket/wsjson"
|
|
||||||
"sync"
|
|
||||||
"time"
|
|
||||||
)
|
|
||||||
|
|
||||||
func init() {
|
|
||||||
di.Injectable(newHub)
|
|
||||||
}
|
|
||||||
|
|
||||||
type IEventHub interface {
|
|
||||||
SetContextLifetime(duration time.Duration)
|
|
||||||
OnConnected(connectionId string, conn *websocket.Conn)
|
|
||||||
OnDisconnected(connectionId string)
|
|
||||||
Dispatch(event Event, callerCtx IContext)
|
|
||||||
Event(event Event, id string)
|
|
||||||
}
|
|
||||||
|
|
||||||
type eventHub struct {
|
|
||||||
mu sync.Mutex
|
|
||||||
contextLifetime time.Duration
|
|
||||||
contexts map[string]IContext
|
|
||||||
registration IEventHandlerRegistration
|
|
||||||
parser IMessageParser
|
|
||||||
}
|
|
||||||
|
|
||||||
func newHub() IEventHub {
|
|
||||||
return &eventHub{
|
|
||||||
mu: sync.Mutex{},
|
|
||||||
contextLifetime: 500 * time.Second,
|
|
||||||
contexts: make(map[string]IContext),
|
|
||||||
registration: di.Inject[IEventHandlerRegistration](),
|
|
||||||
parser: di.Inject[IMessageParser](),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (hub *eventHub) Dispatch(event Event, callerCtx IContext) {
|
|
||||||
// dispatch Event to Handler
|
|
||||||
handler, getHandlerErr := hub.registration.GetHandler(event.Type)
|
|
||||||
if getHandlerErr == nil && handler.CanExecute(callerCtx) {
|
|
||||||
handler.Handle(callerCtx, event.Data)
|
|
||||||
}
|
|
||||||
|
|
||||||
if event.IsBackendOnly || event.Filter == nil {
|
|
||||||
// only dispatch Event on Backend or we have no Context Filter
|
|
||||||
// if you want to dispatch to all Clients use Filter that returns true
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
writeCtx, cancel := gocontext.WithTimeout(gocontext.Background(), time.Second*10)
|
|
||||||
defer cancel()
|
|
||||||
for _, ctx := range hub.contexts {
|
|
||||||
if event.Filter(ctx) {
|
|
||||||
writeErr := wsjson.Write(writeCtx, ctx.GetConnection(), event)
|
|
||||||
if writeErr != nil {
|
|
||||||
println(fmt.Sprintf("[Error on write to Websocket]: %v", writeErr))
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (hub *eventHub) SetContextLifetime(duration time.Duration) {
|
|
||||||
hub.contextLifetime = duration
|
|
||||||
}
|
|
||||||
|
|
||||||
func (hub *eventHub) Event(event Event, id string) {
|
|
||||||
callerCtx, ok := hub.contexts[id]
|
|
||||||
if !ok {
|
|
||||||
println(fmt.Sprintf("[Error on select caller context]: missing context connectionId: %s", id))
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
// Event from Client not send back!
|
|
||||||
event.IsBackendOnly = true
|
|
||||||
hub.Dispatch(event, callerCtx)
|
|
||||||
}
|
|
||||||
|
|
||||||
func (hub *eventHub) OnConnected(connectionId string, conn *websocket.Conn) {
|
|
||||||
hub.mu.Lock()
|
|
||||||
defer hub.mu.Unlock()
|
|
||||||
|
|
||||||
hub.contexts[connectionId] = di.Inject[IContext](connectionId)
|
|
||||||
hub.contexts[connectionId].SetId(connectionId)
|
|
||||||
hub.contexts[connectionId].SetConnection(conn)
|
|
||||||
}
|
|
||||||
|
|
||||||
func (hub *eventHub) OnDisconnected(connectionId string) {
|
|
||||||
hub.mu.Lock()
|
|
||||||
defer hub.mu.Unlock()
|
|
||||||
|
|
||||||
hub.contexts[connectionId].CleanupIn(hub.contextLifetime)
|
|
||||||
delete(hub.contexts, connectionId)
|
|
||||||
}
|
|
||||||
@ -20,14 +20,15 @@ type greeting struct {
|
|||||||
|
|
||||||
type greeterEventHandler struct{}
|
type greeterEventHandler struct{}
|
||||||
|
|
||||||
func (handler greeterEventHandler) CanExecute(_ serverevents.IContext) bool {
|
func (handler greeterEventHandler) CanExecute(context serverevents.IContext) bool {
|
||||||
return true
|
_, ok := serverevents.MetadataAs[string](context, "UserName")
|
||||||
|
return ok
|
||||||
}
|
}
|
||||||
|
|
||||||
func (handler greeterEventHandler) Handle(context serverevents.IContext, data any) {
|
func (handler greeterEventHandler) Handle(context serverevents.IContext, data any) {
|
||||||
userName, ok := serverevents.ValueAs[string](data)
|
userName, ok := serverevents.ValueAs[string](data)
|
||||||
if !ok || len(userName) < 1 {
|
if !ok {
|
||||||
userName = "Anonymous"
|
userName, _ = serverevents.MetadataAs[string](context, "UserName")
|
||||||
}
|
}
|
||||||
context.Dispatch("greet", greeting{
|
context.Dispatch("greet", greeting{
|
||||||
Message: fmt.Sprintf("Hello, %s", userName),
|
Message: fmt.Sprintf("Hello, %s", userName),
|
||||||
|
|||||||
@ -1,61 +0,0 @@
|
|||||||
package main
|
|
||||||
|
|
||||||
var Index = `<!DOCTYPE html>
|
|
||||||
<html lang="en">
|
|
||||||
<head>
|
|
||||||
<meta charset="UTF-8">
|
|
||||||
<title>Test</title>
|
|
||||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/microsoft-signalr/8.0.7/signalr.min.js" integrity="sha512-7SRCYIJtR6F8ocwW7UxW6wGKqbSyqREDbfCORCbGLatU0iugBLwyOXpzhkPyHIFdBO0K2VCu57fvP2Twgx1o2A==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
|
|
||||||
</head>
|
|
||||||
<body>
|
|
||||||
<div>
|
|
||||||
<div>
|
|
||||||
<input type="text" id="name" />
|
|
||||||
<button id="greet">Greet</button>
|
|
||||||
<button id="ping">Ping</button>
|
|
||||||
</div>
|
|
||||||
<ul id="events"></ul>
|
|
||||||
</div>
|
|
||||||
<script>
|
|
||||||
(async function () {
|
|
||||||
let ws;
|
|
||||||
function connect() {
|
|
||||||
if (!localStorage.getItem('client_id')) {
|
|
||||||
localStorage.setItem('client_id', crypto.randomUUID());
|
|
||||||
}
|
|
||||||
ws = new WebSocket('/events?id=' + localStorage.getItem('client_id'));
|
|
||||||
ws.addEventListener('open', function () {
|
|
||||||
wsOpen = true;
|
|
||||||
});
|
|
||||||
ws.addEventListener('message', function (message) {
|
|
||||||
const event = JSON.parse(message.data);
|
|
||||||
if (!event.type) {
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
const eventList = document.getElementById('events');
|
|
||||||
const li = document.createElement('li');
|
|
||||||
li.innerText = event.type + ': ' + (event.data ? JSON.stringify(event.data) : 'null');
|
|
||||||
eventList.append(li);
|
|
||||||
});
|
|
||||||
ws.onclose = function () {
|
|
||||||
setTimeout(() => connect(), 5000);
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
document.getElementById('greet').onclick = function () {
|
|
||||||
const name = document.getElementById('name').value;
|
|
||||||
ws.send(JSON.stringify({
|
|
||||||
type: 'greet me',
|
|
||||||
data: name,
|
|
||||||
}));
|
|
||||||
};
|
|
||||||
|
|
||||||
document.getElementById('ping').onclick = function () {
|
|
||||||
ws.send(JSON.stringify({type: 'ping'}));
|
|
||||||
};
|
|
||||||
|
|
||||||
connect();
|
|
||||||
})();
|
|
||||||
</script>
|
|
||||||
</body>
|
|
||||||
</html>`
|
|
||||||
@ -14,24 +14,12 @@ func main() {
|
|||||||
eventRegistration := di.Inject[serverevents.IEventHandlerRegistration]()
|
eventRegistration := di.Inject[serverevents.IEventHandlerRegistration]()
|
||||||
|
|
||||||
eventRegistration.Add("ping", events.NewPingEventHandler)
|
eventRegistration.Add("ping", events.NewPingEventHandler)
|
||||||
eventRegistration.Add("greet me", events.NewGreeterEventHandler)
|
eventRegistration.Add("greet all", events.NewGreeterEventHandler)
|
||||||
|
|
||||||
router := http.NewServeMux()
|
serverEventsMiddleware.Use(serverevents.MiddlewareOptions{
|
||||||
|
|
||||||
router.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
|
|
||||||
if r.Method == "GET" {
|
|
||||||
w.Header().Set("Content-Type", "text/html")
|
|
||||||
w.WriteHeader(http.StatusOK)
|
|
||||||
_, _ = w.Write([]byte(Index))
|
|
||||||
return
|
|
||||||
}
|
|
||||||
})
|
|
||||||
|
|
||||||
router = serverEventsMiddleware.Use(serverevents.MiddlewareOptions{
|
|
||||||
Path: "/events",
|
Path: "/events",
|
||||||
ContextLifetime: 500 * time.Second,
|
ContextLifetime: 500 * time.Second,
|
||||||
KeepAliveTime: 2 * time.Second,
|
}, nil)
|
||||||
}, router)
|
|
||||||
|
|
||||||
log.Fatal(http.ListenAndServe(":8080", router))
|
log.Fatal(http.ListenAndServe(":8080", nil))
|
||||||
}
|
}
|
||||||
|
|||||||
156
v2/middleware.go
156
v2/middleware.go
@ -1,12 +1,11 @@
|
|||||||
package serverevents
|
package serverevents
|
||||||
|
|
||||||
import (
|
import (
|
||||||
gocontext "context"
|
|
||||||
"fmt"
|
"fmt"
|
||||||
di "git.apihub24.de/admin/generic-di"
|
di "git.apihub24.de/admin/generic-di"
|
||||||
"github.com/coder/websocket"
|
"github.com/gorilla/websocket"
|
||||||
"github.com/coder/websocket/wsjson"
|
|
||||||
"net/http"
|
"net/http"
|
||||||
|
"sync"
|
||||||
"time"
|
"time"
|
||||||
)
|
)
|
||||||
|
|
||||||
@ -17,67 +16,152 @@ func init() {
|
|||||||
type MiddlewareOptions struct {
|
type MiddlewareOptions struct {
|
||||||
Path string
|
Path string
|
||||||
ContextLifetime time.Duration
|
ContextLifetime time.Duration
|
||||||
KeepAliveTime time.Duration
|
|
||||||
}
|
}
|
||||||
|
|
||||||
type IMiddleware interface {
|
type IMiddleware interface {
|
||||||
Use(options MiddlewareOptions, mux *http.ServeMux) *http.ServeMux
|
Use(options MiddlewareOptions, mux *http.ServeMux)
|
||||||
}
|
}
|
||||||
|
|
||||||
type serverEventsMiddleware struct {
|
type serverEventsMiddleware struct {
|
||||||
hub IEventHub
|
options MiddlewareOptions
|
||||||
|
upgrader websocket.Upgrader
|
||||||
|
streamSubscribers map[string]bool
|
||||||
|
emitter IEventEmitter
|
||||||
|
parser IMessageParser
|
||||||
|
registration IEventHandlerRegistration
|
||||||
|
mutex sync.Mutex
|
||||||
}
|
}
|
||||||
|
|
||||||
func newServerEventsMiddleware() IMiddleware {
|
func newServerEventsMiddleware() IMiddleware {
|
||||||
return &serverEventsMiddleware{
|
return &serverEventsMiddleware{
|
||||||
hub: di.Inject[IEventHub](),
|
upgrader: websocket.Upgrader{
|
||||||
|
CheckOrigin: func(r *http.Request) bool {
|
||||||
|
return true
|
||||||
|
},
|
||||||
|
},
|
||||||
|
streamSubscribers: make(map[string]bool),
|
||||||
|
emitter: di.Inject[IEventEmitter](),
|
||||||
|
parser: di.Inject[IMessageParser](),
|
||||||
|
registration: di.Inject[IEventHandlerRegistration](),
|
||||||
|
mutex: sync.Mutex{},
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
func (middleware *serverEventsMiddleware) Use(options MiddlewareOptions, muxer *http.ServeMux) *http.ServeMux {
|
func (middleware *serverEventsMiddleware) Use(options MiddlewareOptions, muxer *http.ServeMux) {
|
||||||
if muxer == nil {
|
middleware.options = options
|
||||||
muxer = http.NewServeMux()
|
middleware.selectMethod(options.Path, func(w http.ResponseWriter, r *http.Request) {
|
||||||
|
middleware.handleEventStream(w, r)
|
||||||
|
}, muxer)
|
||||||
}
|
}
|
||||||
|
|
||||||
eventHub := di.Inject[IEventHub]()
|
func (middleware *serverEventsMiddleware) handleEventStream(w http.ResponseWriter, r *http.Request) {
|
||||||
muxer.HandleFunc(options.Path, func(w http.ResponseWriter, r *http.Request) {
|
conn, err := middleware.upgrader.Upgrade(w, r, nil)
|
||||||
id := r.URL.Query().Get("id")
|
if err != nil {
|
||||||
if len(id) < 1 {
|
fmt.Println("Error upgrading:", err)
|
||||||
println(fmt.Sprintf("no id found in query websocket closed"))
|
|
||||||
return
|
|
||||||
}
|
|
||||||
c, connectionErr := websocket.Accept(w, r, nil)
|
|
||||||
if connectionErr != nil {
|
|
||||||
println(fmt.Sprintf("[Error on connect Websocket]: %v", connectionErr))
|
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
defer func() {
|
defer func() {
|
||||||
println("Websocket disconnect")
|
// do not handle Error
|
||||||
eventHub.OnDisconnected(id)
|
_ = conn.Close()
|
||||||
_ = c.CloseNow()
|
|
||||||
}()
|
}()
|
||||||
|
id := r.URL.Query().Get("id")
|
||||||
|
context := di.Inject[IContext](id)
|
||||||
|
context.SetId(id)
|
||||||
|
|
||||||
eventHub.OnConnected(id, c)
|
// Locks the mutex before accessing 'middleware.streamSubscribers',
|
||||||
|
// to prevent race conditions when reading/writing to the map.
|
||||||
|
// This ensures that only one goroutine checks/registers at a time.
|
||||||
|
// defer can't be used here as the stream listens for messages in an infinite loop
|
||||||
|
middleware.mutex.Lock()
|
||||||
|
if _, ok := middleware.streamSubscribers[id]; !ok {
|
||||||
|
subscription := middleware.emitter.OnAll(func(ev Event) {
|
||||||
|
// trigger the Backend Handlers
|
||||||
|
handler, getHandlerErr := middleware.registration.GetHandler(ev.Type)
|
||||||
|
if getHandlerErr != nil {
|
||||||
|
println(fmt.Sprintf("no Handler found for Event %s", ev.Type))
|
||||||
|
} else {
|
||||||
|
if handler.CanExecute(context) {
|
||||||
|
handler.Handle(context, ev.Data)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if ev.IsBackendOnly || ev.Filter == nil || !ev.Filter(context) {
|
||||||
|
// the Event is Backend only or there is no socket (context) Filter
|
||||||
|
// to send to all Sockets deliver context Filter with returns bool
|
||||||
|
return
|
||||||
|
}
|
||||||
|
jsonData, jsonErr := middleware.parser.ToString(ev)
|
||||||
|
if jsonErr != nil {
|
||||||
|
println(fmt.Sprintf("Error parse event %s %s", jsonErr.Error(), ev.Type))
|
||||||
|
return
|
||||||
|
}
|
||||||
|
_ = conn.WriteMessage(websocket.TextMessage, []byte(jsonData))
|
||||||
|
})
|
||||||
|
defer func() {
|
||||||
|
// Blocks the mutex again, as this block also accesses 'middleware.streamSubscribers'.
|
||||||
|
// This is crucial to avoid race conditions when removing entries,
|
||||||
|
// while new connections may be established.
|
||||||
|
// defer cannot be used here either
|
||||||
|
middleware.mutex.Lock()
|
||||||
|
subscription.Unsubscribe()
|
||||||
|
delete(middleware.streamSubscribers, id)
|
||||||
|
|
||||||
|
// starts the Cleanup Process
|
||||||
|
context.CleanupIn(middleware.options.ContextLifetime)
|
||||||
|
middleware.mutex.Unlock()
|
||||||
|
}()
|
||||||
|
middleware.streamSubscribers[id] = true
|
||||||
|
}
|
||||||
|
middleware.mutex.Unlock()
|
||||||
|
|
||||||
|
ctx := r.Context()
|
||||||
for {
|
for {
|
||||||
err := readMessage(c, eventHub, id)
|
messageType, data, err := conn.ReadMessage()
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
if middleware.HandleMessage(conn, messageType, data) {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
select {
|
||||||
|
case <-ctx.Done():
|
||||||
|
return
|
||||||
|
}
|
||||||
}
|
}
|
||||||
})
|
|
||||||
|
|
||||||
return muxer
|
|
||||||
}
|
}
|
||||||
|
|
||||||
func readMessage(c *websocket.Conn, eventHub IEventHub, id string) error {
|
func (middleware *serverEventsMiddleware) selectMethod(path string, todo http.HandlerFunc, muxer *http.ServeMux) {
|
||||||
var message Event
|
if muxer == nil {
|
||||||
readErr := wsjson.Read(gocontext.Background(), c, &message)
|
http.HandleFunc(path, todo)
|
||||||
if readErr != nil {
|
} else {
|
||||||
println(fmt.Sprintf("[Error on read from Websocket]: %v", readErr))
|
muxer.HandleFunc(path, todo)
|
||||||
return readErr
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
eventHub.Event(message, id)
|
func (middleware *serverEventsMiddleware) HandleMessage(conn *websocket.Conn, messageType int, data []byte) bool {
|
||||||
return nil
|
switch messageType {
|
||||||
|
case websocket.PingMessage:
|
||||||
|
pongErr := conn.WriteMessage(websocket.PongMessage, []byte{})
|
||||||
|
if pongErr != nil {
|
||||||
|
println(fmt.Sprintf("error on send PongMessage: %s", pongErr.Error()))
|
||||||
|
}
|
||||||
|
break
|
||||||
|
case websocket.CloseMessage:
|
||||||
|
// return true to close the Websocket
|
||||||
|
return true
|
||||||
|
case websocket.TextMessage:
|
||||||
|
ev, parseErr := middleware.parser.FromString(string(data))
|
||||||
|
if parseErr != nil {
|
||||||
|
println(fmt.Sprintf("error on parse Event: %s data: %s", parseErr.Error(), string(data)))
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
// Event was dispatched over the Websocket so not send it back to Client!
|
||||||
|
ev.IsBackendOnly = true
|
||||||
|
middleware.emitter.Emit(ev)
|
||||||
|
break
|
||||||
|
case websocket.BinaryMessage:
|
||||||
|
println(fmt.Sprintf("BinaryMessages are not supported"))
|
||||||
|
break
|
||||||
|
}
|
||||||
|
return false
|
||||||
}
|
}
|
||||||
|
|||||||
12
v2/subscription.go
Normal file
12
v2/subscription.go
Normal file
@ -0,0 +1,12 @@
|
|||||||
|
package serverevents
|
||||||
|
|
||||||
|
type Subscription struct {
|
||||||
|
id string
|
||||||
|
eventType string
|
||||||
|
todo func(Event)
|
||||||
|
emitter IEventEmitter
|
||||||
|
}
|
||||||
|
|
||||||
|
func (subscription Subscription) Unsubscribe() {
|
||||||
|
subscription.emitter.Unsubscribe(subscription)
|
||||||
|
}
|
||||||
Loading…
x
Reference in New Issue
Block a user